为帮助外国朋友学唱中国豫剧，下面介绍有关豫剧的背景资料。
Yu Opera,its another name is "eastern aria",its
birthplace is Kaifeng,Henan.It is popular in
Eastern China,such as Henan,Jiangsu,Shandong
Anhui and so on.To apply for world heritage,its
sperical purpose number is IV-23.
Yu Opera music,voices bright,singing smooth,
majestic and forceful.Male cavity,original flavour
Female cavity,euphemism,beautiful,grave and generous.
Main operatic tones：
(1)Yudong tone：
as chinese mode,it is "Hui"mode,the tonic is
"Sao"，flase voice,sonorous powerful.
(2)Yuxi tone：
as chinese mode,it is "Gong"mode,the tonic is
"Do"，true voice,bold and strong,tragic and
deep.
About the accompaniment musical instruments
there are gaoyingbanhu,sanxuan,yueqing,erhu,
daxuan,pipa,zhongyingbanhu,di,sen and so on,
the main instrument is banhu.
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